== sanity test 421d: rmfid en masse ====================== 10:15:04 (1788876904)
 - open/close 988 (time 1788876917.99 total 10.01 last 98.75)
 - open/close 2015 (time 1788876928.00 total 20.01 last 102.65)
 - open/close 3037 (time 1788876938.00 total 30.02 last 102.14)
total: 4097 open/close in 39.28 seconds: 104.31 ops/second